Microvolts to dBm Watt Conversion (50 ohms)
Vrms
dBm
Watts
μV
mV
V
W
0.7
-110
10 fW
1.1
-46
+14
0.025
0.8
-109
1.2
-45
+15
0.032
0.9
-108
1.4
-44
+16
0.04
1
-107
1.5
-43
+17
0.05
-106
1.7
-42
+18
0.063
-105
1.9
-41
+19
0.08
-104
2.2
-40
100 nW
+20
0.1 W
-103
2.5
-39
+21
0.13
-102
2.8
-38
+22
0.16
-101
3.1
-37
+23
0.2
-100
100 fW
3.5
-36
+24
0.25
-99
3.9
-35
+25
0.3
-98
4.4
-34
+26
0.4
-97
5
-33
+27
0.5
-96
5.6
-32
+28
0.63
-95
6.3
-31
+29
-94
7
-30
1 µW
+30
1 W
-93
7.9
-29
+31
-92
8.9
-28
+32
-91
9.9
-27
+33
2
-90
1 pW
11
-26
11.2
+34
-89
13
-25
12.5
+35
-88
14
-24
14.1
+36
-87
15
-23
15.8
+37
-86
17
-22
17.7
+38
-85
19
-21
19.9
+39
-84
22
-20
10 µW
22.3
+40
10 W
16
-83
25
-19
18
-82
28
-18
20
-81
32
-17
-80
10 pW
35
-16
-79
40
-15
-78
45
-14
-77
50
-13
-76
56
-12
-75
63
-11
-74
71
-10
100 µW
-73
79
-9
-72
89
-8
-71
100
-7
-70
100 pW
112
-6
-69
126
-5
-68
141
-4
-67
158
-3
-66
178
-2
-65
199
-1
-64
224
0
1 mW
-63
251
+1
177
-62
282
+2
200
-61
316
+3
223
-60
1 nW
354
+4
-59
398
+5
-58
446
+6
-57
501
+7
-56
562
+8
-55
630
+9
-54
707
+10
10 mW
500
-53
793
+11
561
-52
890
+12
-51
1000
+13
-50
10 nW
-49
-48
-47
